varnishd exit on signal 11

[zhongwei wang]

HI
 I have varnish-1.1.2 running on my FreeBSD7.0 amd64 box, but it's NOT stable. Lots of message like these "pid 36910 (varnishd), uid 65534: exited on signal 11" in dmesg, then the varnishd-mgr process just disappear. Backtracing the core dump, I get:[Thread 0xa84419650 (LWP 100874) exited]
Program received signal SIGSEGV, Segmentation fault.[Switching to Thread 0xa83404090 (LWP 100648)]vbe_sock_conn (ai=0x0) at cache_backend.c:162162             s = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);(gdb) bt#0  vbe_sock_conn (ai=0x0) at cache_backend.c:162#1  0x0000000000408c05 in VBE_GetFd (sp=0xa856bd008) at cache_backend.c:190#2  0x000000000040b0b2 in Fetch (sp=0xa856bd008) at cache_fetch.c:278#3  0x0000000000409851 in CNT_Session (sp=0xa856bd008) at cache_center.c:300#4  0x0000000000410e81 in wrk_do_one (w=0x7fffc1208ad0) at cache_pool.c:194#5  0x00000000004110ae in wrk_thread (priv=Variable "priv" is not available.) at cache_pool.c:248#6  0x0000000800a83a88 in pthread_getprio () from /lib/libthr.so.3#7  0x0000000000000000 in ?? ()Error accessing memory address 0x7fffc120b000: Bad address.(gdb)
The ai is NULL, then varnish-chld is killed.
Any ideas? Thanks
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